Problem with build in unreal

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#1

someone know what do I need to do in order to fix this problem? :
Error MSB3075 The command ““F:\Program Files (x86)\Epic Games\4.12\Engine\Build\BatchFiles\Build.bat” BuildingEscapeEditor Win64 Development “F:\UnrealProjects\BuildingEscape\BuildingEscape\BuildingEscape.uproject” -waitmutex” exited with code 5. Please verify that you have sufficient rights to run this command. BuildingEscape C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V140\Microsoft.MakeFile.Targets.
I cant build anything and I tried to run visual studio as administrator

#2

I had a similar problem once. I needed to log out of visual studio and re-enter my credentials. Maybe that will work in your case? You probably already solved this, but just in case for the future, sometimes vs just needs you to log out and log in again to work.

#3

Sadly this did not resolve the error for me. I’m under the impression that this error has something to do with OnlineSubsystem but I have no idea what.

Edit: Holy cow, mine was caused by SessionInterface.IsValid instead of SessionInterface.IsValid().

#4

这个问题我花了大半天时间来搜索解决方案。终于找到了有用的东西
I spent almost half day to search for the solution to this.Finally, I found something useful.

https://answers.unrealengine.com/questions/429455/link-errors-in-ubttasknode-classes.html
https://answers.unrealengine.com/questions/511544/errorlnk2001-within-ubtservice-class.html?sort=oldest

可以参考一下上面两个问题的答案，其实两个都一样。
You can refer these two links above. Both the same, either one will be fine.

为了方便你们，我直接复制了解决方案：
For your convenient, I copyed it :

This is a known issue with changing to 4.12 and using tasks. It can be resolved by simply adding “GameplayTasks” to the PublicDependencyModuleNames section inside your ‘ProjectName’.Build.cs For example:

PublicDependencyModuleNames.AddRange(new string[] { “Core”, “CoreUObject”, “Engine”, “InputCore”, “AIModule”, “GameplayTasks” });

在YourProjectName.Build.cs里的PublicDependencyModuleNames加上GameplayTasks就行。
Add GameplayTasks to PublicDependencyModuleNames of the YourProjectName.Build.cs file~.

#5

When you see that in the console at the bottom, click the “Output” instead of “Error list”. When you’re on that tab, you’ll have a message that is easier to understand.

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#6

This is what saved me (checking the Output tab)! Thank you.

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